Weighing-balance.



W. SiMS.

WEIGHING BALANCE.

APPLXCATION man OCT. 18, I916.

Patented J une 19, 1917.

WALTER SIMS, 0F PAWTUCKET, RHODE ISLAND.

WEIGI-IING-BALANCE.

Application filed October 18, 1916.

To all whom it may concern:

Be it known that I, WALTER SIMS, a citizen of the United States, residing at Pawtucket, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in lVeighingBalances, of which the following is a specification.

My invention relates to scales or balances, and has for its essential objects the avoidance of auxiliary weights; to facilitate computations; to enable the measurement of weight by linear measurement; to increase the scope or capacity of such devices where by exceedingly light or heavy matter may be weighed; to afford a vernier measurement of the weight of the matter; and to a tain these objects in a simple, inexpensive, and accurate structure.

To the above ends essentially my invention consists in such parts and in such co1nbinations of parts as fall within the scope of the appended claims.

In the accompanying drawings which form a part of this specification,

Figure 1 is a front elevation of my novel balance in its most approved form, and

Figs. 2 and 3 sections thereof on lines 2-2 and 33 respectively of Fig. 1.

Like reference characters indicate like parts throughout the views.

The invention will be described in connection with the specific embodiment shown, and it will be understood that the invention is not to be limited by such specific showing except for such limitations as the claims impart.

In the form thereof herein shown my balance comprises a base A integral with which or attached to which is a vertical extension or block B having a top face 5 longitudinally inclined. In the extension, parallel with the top face is an inclined guideway represented in a general way by C in which is slidably mounted a weight or block D. In this instance the guideway is formed by an inclined longitudinal channel E in the face 6 of the extension, and inclined longitudinally disposed slots 6, opposite each other, in the side walls 6 resultant from the presence of the sectionally rectangular groove or channel E. The weight is rectangular and slides in the groove E, and has lateral longitudinally disposed projecting portions or shoulders f which register in the slots 6 and are flush with the outer surfaces Specification of Letters Patent.

Patented June 19, 1917. Serial No. 126,418.

of the walls c. On an intermediate part of the upper face of the weight are spaced lugs 5/ connected by a pin 9 on which is a sleeve 9 to which reference will hereinafter be made.

Upon an intermediate portion of the base is a post G upon which is pivotally mounted on a pin 9 a balance beam II. Adjacent its ends the beam has oblong openings I, J, therethrough, across which extend pins 7: and 7' respectively. Upon a sleeve 2" on the pin 1' is a hook adapted to engage the removable hanger K carrying the pan Z. From a hook m on a sleeve m upon the pin j is similarly suspended the hanger M of the pan a.

In the ends of the beam are the usual com pensation screws 0 and P. end of the beam H is an opening Q across which is a pin 9, carrying a sleeve 9 to which is fixed one end of a chain or other flexible member R whose other end is attached to the sleeve Q2.

Upon one of the walls 6, at the margin of its slot 6 is a micrometrie scale S. In the present instance it comprises a series of graduations 8 along the upper margin of the slot, and a series of graduations 3 along the bottom margin of the slot or opening. The larger divisions t of the scale S are one inch, divided into graduations Z of tenths of an inch. The graduations s are hundredths of an inch. Upon the upper portion of the face of the weight D are graduations- 8 spaced nine one hundredths of an inch apart. Upon the lower margin of the weight are graduations .9 nine one thousandths of an inch apart. lVe read on the portion .9 the inches and tenths of inches. Upon the vernier principle we read the hudredths of an inch upon the portion 8 The reading on portion 8 is thousandths of inches, which are attained in conjunction with the scale 8 upon the vernier principle. In this instance the left edge t of the weigh; D is used as the reading indicator. The use of the inch as a unit of measurement is merely illustration as a unit of the metric system may be employed, or any other pre ferred unit.

The operation of my device is as follows: The article U to be weighed is placed in the pan n which tilts the opposite end of the beam upwardly some distance, as shown in Fig. 1, and, through the member R, draws the weight D up the inclined guideway to a Adjacent the point Where the reading upon the scale is made.

It Will be understoodthat by construction or test the linear unit of one inch, for in stance, on the scale S represents one gram or other certain unit of Weight, and calcula tions may be made accordingly.

In Weighing small or fractional Weights the hanger M only is employed and the hanger K is dispensed with. When articles or matter of greater than unit Weight is Weighed it is convenient to employ the latter hanger. That is to say a counter Weight of a number of even Weight units next smaller than the even units of Weight of the article in pan n is placed in pan Z, and the fractional difierence in Weight is indicated by the slidable Weight I).

I claim 1. In a Weighing balance, the combination of a base, an lnclined guideway on the base, a post on the base, a balance arm on the post, a'hanger on one end of the arm, a Weight slidably mounted in the guideway, and a member pivotally connecting the other end of the arm with the Weight.

2. In a Weighing balance, the combination of a base, an inclined guideway on the base having scale graduations, a post on the base,

a balance arm on the post, a hanger on one end of the arm, a Weight slidably mounted in the guideway having scale graduations, and a flexible member connecting the other end of the arm With the Weight. 7

3. In a Weighing balance, the combination of a base, an inclined guideway on the base having scale graduations, a post on the base, a balance arm on the post, a hanger on an end of the arm, a Weight slidably mounted in the guideway having Vernier scale graduations, a flexible member connecting the other end of the arm with the Weight.

4. In a Weighing balance, the combination of a base, an inclined guideway on the base, a post on the base, a balance arm on the post, a Weighing hanger on one end of the arm, a counter balance hanger on the other end of the arm, a Weight slidably mounted in the guideway, and a flexible member connecting the Weight with a portion of the arm adj acent the second hanger.

In testimony whereof I have affixed my signature in presence of two Witnesses.

WALTER SIMS.

Witnesses HORATIO E. BELLOWS, CHARLES S. JnNoKEs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents- Washington, D. 0. 

